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What is the enthalpy of a reaction, if the standard heat of formation of a compound is 10 J, sensible heat of the compound is 30 J, and latent heat of the compound is 20 J?

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What is the enthalpy of a reaction, if the standard heat of formation of a compound is 10 J, sensible heat of the compound is 30 J, and latent heat of the compound is 20 J?

(a) 10 J

(b) 30 J

(c) 40 J

(d) 60 J

This question was posed to me in semester exam.

The doubt is from Merging Heat of Formation with Sensible Heat of Compound in division Application of Energy Balances in the Absence of Chemical Reactions and Energy Balances: How to Account for Chemical Reaction of Basic Chemical Engineering

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Best answer
Correct choice is (d) 60 J

Best explanation: Enthalpy of reaction = 10 + 30 + 20 = 60 J.

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